Optimization of synthetic process of prasugrel hydrochloride
-
摘要: 目的 改进盐酸普拉格雷的合成工艺,以便于放大生产,提高产品纯度。 方法 以邻氟苯乙酸和环丙烷甲酸甲酯为原料合成环丙基-2-氟苄基酮,再用NBS溴代得到α-环丙基羰基-2-氟苄基溴,在碱存在下,与2-氧代-2,4,5,6,7,7a-六氢噻吩并[3,2-c]吡啶盐酸盐发生亲核取代反应,再经乙酰化和成盐反应制得盐酸普拉格雷。 结果 优化后的合成工艺操作简便,成本低廉,可获得高纯度的盐酸普拉格雷。 结论 新工艺总产率达到48%,有利于工业生产。Abstract: Objective To improve the synthetic process of prasugrel hydrochloride in order to enlarge production and get high purity. Methods 2-fluorine phenylacetic acid was reacted with methyl cyclopropanecarboxylate, followed by bromination with NBS to afford α-cyclopropyl carbonyl-2-fluorobenzyl bromide. The latter was condensed with 2-oxo-2, 4, 5, 6, 7, 7a-hexahydro-thieno[3, 2-c]pyridine hydrochloride, and then acetylated and solified to finally afford prasugrel hydrochloride. Results The cost of this optimized synthetic process of prasugrel hydrochloride was obviously low, with easy operation process and availability of high purity. Conclusion The overall yield of new process was 48%, which ensured a more appropriate process for industrial production.
-
Key words:
- Prasugrel hydrochloride /
- antithrombotic drug /
- drug synthesis
-
[1] 宋建虹,杜小莉. 新型口服抗血小板活化和聚集药物——普拉格雷[J].中国药学杂志, 2010,45(17);1357. [2] Jakubowski JA,Winters KJ,Naganuma H,et al. Prasugrel:a novel thienopyridine antiplatelet agent.A review of preclinical and clinical studies and the mechanistic basis for its distinct antiplatelet profile[J].Cardiovascular Drug Rev, 2007, 25(4):357. [3] Alain B,Daniel F,Jian-Pierre M,et al. Derivatives of alpha(2-oxo-2,4,5,6,7,7a-hexahy drothieno[3,2-c]-5-pyridyl) phenyl acetic acid,and their use as platelet and thrombotic aggregation inhibitiors[P].US.4740510,1988-04-26. [4] Hiroyuki K,Fumitoshi A,Atsuhiro S,et al. Tetra-hydrothienopyridine derivatives, furo and pyrrolo analogs thereof and their preparation and uses for inhibiting blood platelet aggregation[P].EP 0542411,1993-05-19. [5] 吴雪松,岑均达,郭 珩. 制备普拉格雷的中间体及其制备方法[P].CN101245072A, 2008-08-20. [6] 程兴栋,童 玲, 杨玉雷,等. 普拉格雷的合成工艺研究[J].中国新药杂志, 2010,19(15);1314.
计量
- 文章访问数: 3459
- HTML全文浏览量: 381
- PDF下载量: 172
- 被引次数: 0